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PZSLPlate. Helix Geotrochus horderi Sowerby Sowerby Sowerby Sowerby Sowerby non Craven preoccupied Morelet Sowerby Sowerby Sowerby Sowerby Sowerby Sowerby Sowerby Sowerby Sowerby Sowerby Sowerby Sowerby SowerbySowerby SowerbySowerby NystSowerby Sowerby SowerbySowerby SowerbySowerby en Shells of land snails in apertural